Advice please ?

Sooo I recently started having sex ..we ALWAYS use a comdom but I'm not on birth control because I personally just don't want to be on it .... Well I never really used a <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> before because mine can somtimes be all over the damn place lol but well it's showing I'm 6 days late and a 7% chance of pregnancy  and idk I'm kinda scared I'm like stressing over it .... I know I could just go take a test but I can't exactly get one without people in my house seeing , what should I do ??? 😧😧